Air Quality
Excellent
No health implications.
11
PM2.5
21
PM10
113
O3
0.4
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Apr
56
Good
Fri
24 Apr
56
Good
Sat
25 Apr
64
Good
Sun
26 Apr
64
Good
Mon
27 Apr
67
Good
Tue
28 Apr
62
Good
Wed
29 Apr
33
Excellent
Air quality in the last 12 months (Chenggu)
|
2026/03
|
13
|
18
|
33
|
46
|
55
|
53
|
31
|
24
|
28
|
39
|
50
|
89
|
127
|
32
|
18
|
25
|
21
|
45
|
60
|
61
|
67
|
64
|
63
|
46
|
44
|
49
|
47
|
51
|
48
|
27
|
36
|
|
2026/02
|
92
|
93
|
96
|
92
|
102
|
104
|
69
|
80
|
78
|
74
|
82
|
75
|
83
|
94
|
77
|
46
|
96
|
72
|
65
|
61
|
89
|
121
|
78
|
51
|
53
|
37
|
34
|
21
|
|||
|
2026/01
|
39
|
69
|
82
|
77
|
71
|
65
|
83
|
90
|
96
|
106
|
95
|
116
|
117
|
118
|
93
|
108
|
125
|
158
|
57
|
39
|
56
|
67
|
89
|
108
|
117
|
120
|
116
|
117
|
85
|
45
|
77
|
|
2025/12
|
89
|
112
|
107
|
99
|
85
|
98
|
99
|
98
|
121
|
94
|
101
|
102
|
71
|
69
|
86
|
78
|
87
|
100
|
98
|
80
|
44
|
57
|
57
|
70
|
68
|
77
|
85
|
122
|
132
|
150
|
71
|
|
2025/11
|
53
|
51
|
53
|
66
|
58
|
48
|
22
|
40
|
45
|
56
|
60
|
64
|
61
|
66
|
61
|
52
|
19
|
30
|
41
|
61
|
64
|
76
|
56
|
60
|
65
|
77
|
103
|
88
|
84
|
89
|
|
|
2025/10
|
11
|
12
|
13
|
11
|
11
|
11
|
14
|
21
|
26
|
17
|
9
|
10
|
16
|
21
|
15
|
14
|
9
|
14
|
12
|
9
|
12
|
19
|
32
|
41
|
42
|
39
|
44
|
50
|
59
|
47
|
49
|
|
2025/09
|
27
|
22
|
30
|
17
|
15
|
30
|
33
|
21
|
23
|
26
|
16
|
14
|
20
|
26
|
33
|
24
|
17
|
7
|
10
|
12
|
13
|
11
|
9
|
15
|
26
|
27
|
19
|
13
|
15
|
18
|
|
|
2025/08
|
29
|
30
|
36
|
35
|
30
|
21
|
24
|
21
|
16
|
12
|
19
|
24
|
29
|
36
|
30
|
14
|
17
|
19
|
25
|
25
|
29
|
26
|
16
|
18
|
18
|
30
|
27
|
11
|
11
|
14
|
19
|
|
2025/07
|
16
|
17
|
25
|
22
|
13
|
16
|
18
|
18
|
26
|
23
|
25
|
34
|
34
|
33
|
32
|
35
|
30
|
18
|
25
|
21
|
23
|
27
|
15
|
13
|
13
|
20
|
22
|
24
|
25
|
25
|
27
|
|
2025/06
|
18
|
29
|
45
|
46
|
33
|
39
|
28
|
29
|
30
|
38
|
38
|
37
|
45
|
35
|
59
|
52
|
43
|
28
|
28
|
40
|
25
|
26
|
23
|
26
|
20
|
19
|
26
|
26
|
27
|
13
|
|
|
2025/05
|
68
|
57
|
83
|
59
|
52
|
108
|
61
|
50
|
90
|
51
|
54
|
56
|
39
|
53
|
62
|
61
|
84
|
69
|
73
|
74
|
82
|
64
|
60
|
47
|
46
|
46
|
31
|
32
|
30
|
36
|
24
|
|
2025/04
|
60
|
77
|
72
|
68
|
89
|
64
|
57
|
62
|
71
|
68
|
86
|
498
|
259
|
85
|
59
|
70
|
77
|
97
|
105
|
57
|
55
|
81
|
82
|
57
|
57
|
50
|
39
|
45
|
52
|
51
|
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
Air quality source: CNEMC
*: primary pollution